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Leptogenesis from right-handed neutrino decays to right-handed leptons

Thomas Hambye
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Abstract

We investigate what would be the consequences for leptogenesis of the existence of a charged SU(2)_L singlet scalar delta^+. If such a scalar particle exists, it allows the right-handed neutrinos to couple not only to left-handed lepton and Higgs doublets as in ordinary leptogenesis, but also to a right-handed charged lepton and a delta^+. This provides a new source of leptogenesis which can be successful in a non-resonant way at scales as low as TeV. The incorporation of this scenario in left-right symmetric and unified models is discussed.

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Thomas Hambye. 2006-06-16. Leptogenesis from right-handed neutrino decays to right-handed leptons. https://arxiv.org/abs/hep-ph/0606182

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